Accessibility in Blazor Rating component
4 Nov 20254 minutes to read
The Blazor Rating component followed the accessibility guidelines and standards, including ADA, Section 508, WCAG 2.2 standards, and WCAG roles that are commonly used to evaluate accessibility.
The accessibility compliance for the Blazor Rating component is outlined below.
| Accessibility Criteria | Compatibility |
|---|---|
| WCAG 2.2 Support |  |
| Section 508 Support | |
| Screen Reader Support | |
| Right-To-left Support | |
| Color Contrast | |
| Mobile Device Support | |
| Keyboard Navigation Support | |
| Axe-core Accessibility Validation | |
- All features of the component meet the requirement.
- Some features of the component do not meet the requirement.
- The component does not meet the requirement.WAI-ARIA attributes
The Blazor Rating component follows the WAI-ARIA slider pattern to meet accessibility requirements. The following ARIA attributes are used in the Blazor Rating component:
| Attributes | Purpose |
|---|---|
role=slider |
Defines an input where the user selects a value from within a specified range. |
role=button |
Indicates that the reset control is clickable and resets the rating to its minimum value. |
aria-label |
Provides an accessible name for the Rating component. |
aria-valuemin |
Defines the minimum rating value. |
aria-valuemax |
Defines the maximum rating value. |
aria-valuenow |
Announces the current rating value. |
aria-hidden |
Hides the element from assistive technologies when present. |
Keyboard interaction
The Blazor Rating component follows the keyboard interaction guideline, improving accessibility for people who use assistive technologies and those who rely on keyboard navigation. The following keyboard shortcuts are supported by the Blazor Rating component.
| Windows | Mac | Actions |
|---|---|---|
| Space | Space | When the Reset button is focused, resets to the min value. |
| ↑ | ↑ | Increases the value. |
| ← | ← | Decreases the value; in right-to-left mode, increases the value. |
| ↓ | ↓ | Decreases the value. |
| → | → | Increases the value; in right-to-left mode, decreases the value. |
Ensuring accessibility
The Blazor Rating component’s accessibility is verified using axe-core with Playwright tests.
The accessibility compliance of the Blazor Rating component is demonstrated in the following sample. Open the sample in a new window to evaluate the component with accessibility tools.